-9.07% is the change from 518 to 471
Calculation steps:
[( 471 - 518 ) ÷ 518] x 100 = -9.07%
Formula
Percentage change = [(471 - 518) / 518] x 100
Subtract the new number by the original number
471 - 518 = -47
-47 ÷ 518 = -0.09073359073359073
-0.09073359073359073 x 100 = -9.07%